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added compiler in docker image
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‎CONTRIBUTING.md‎

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How to Contribute
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=================
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This project welcomes your contribution. There are several ways to help out:
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* Create an [issue](https://github.com/femtopixel/docker-google-closure-compiler-api/issues/) on GitHub,
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if you have found a bug or have an idea for a feature
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* Write test cases for open bug issues
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* Write patches for open bug/feature issues
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Issues
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------
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* Submit an [issue](https://github.com/femtopixel/docker-google-closure-compiler-api/issues/)
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* Make sure it does not already exist.
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* Clearly describe the issue including steps to reproduce, when it is a bug.
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* Make sure you note the version you use.
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Additional Resources
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--------------------
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* [Existing issues](https://github.com/femtopixel/docker-google-closure-compiler-api/issues/)
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* [General GitHub documentation](https://help.github.com/)
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* [GitHub pull request documentation](https://help.github.com/send-pull-requests/)

‎Dockerfile‎

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FROM python:alpine
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MAINTAINER Jay MOULIN <jaymoulin@gmail.com>
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COPY ./compiler.py /bin/compiler.py
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COPY ./entrypoint.sh /bin/entrypoint
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ENTRYPOINT ["/bin/entrypoint"]
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CMD ["/bin/compiler.py"]

‎LICENSE‎

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MIT License
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Copyright (c) 2017 Jay MOULIN
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Copyright (c) 2017 FemtoPixel
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal

‎README.md‎

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Google Closure Compiler API - Docker Image
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==========================================
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[![latest release](https://img.shields.io/github/release/femtopixel/docker-google-closure-compiler-api.svg "latest release")](http://github.com/femtopixel/docker-google-closure-compiler-api/releases)
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[![Bitcoin donation](https://github.com/jaymoulin/jaymoulin.github.io/raw/master/btc.png "Bitcoin donation")](https://m.freewallet.org/id/374ad82e/btc)
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[![Litecoin donation](https://github.com/jaymoulin/jaymoulin.github.io/raw/master/ltc.png "Litecoin donation")](https://m.freewallet.org/id/374ad82e/ltc)
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This image allows you to Compile your JS code using [Google Closure Compiler API](https://developers.google.com/closure/compiler/) in CLI
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Usage
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-----
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```
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usage: compiler.py [-h] [--js JS] [--js_output_file JS_OUTPUT_FILE]
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[--compilation_level {WHITESPACE_ONLY,SIMPLE_OPTIMIZATIONS,ADVANCED_OPTIMIZATIONS}]
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optional arguments:
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-h, --help show this help message and exit
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--js JS Input file
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--js_output_file JS_OUTPUT_FILE
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Output file
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--compilation_level {WHITESPACE_ONLY,SIMPLE_OPTIMIZATIONS,ADVANCED_OPTIMIZATIONS}
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Compilation level
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```
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## Default values
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`--js` : /dev/stdin (input your code)
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`--js_output_file` : /dev/stdout (Prints compiled code in the shell)
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`--compilation_level` : WHITESPACE_ONLY
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Docker usage
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------------
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```
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docker run --rm -ti -v /path/to/my/file.js:/root/myfile.js femtopixel/google-closure-compiler --js /root/myfile.js
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```

‎compiler.py‎

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#!/usr/local/bin/python3
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import http.client, urllib.parse, sys, argparse
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument("--js", default='/dev/stdin', help="Input file")
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parser.add_argument("--js_output_file", default='/dev/stdout', help="Output file")
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parser.add_argument("--compilation_level", default='WHITESPACE_ONLY', choices=['WHITESPACE_ONLY', 'SIMPLE_OPTIMIZATIONS', 'ADVANCED_OPTIMIZATIONS'], help="Compilation level")
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args = parser.parse_args()
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js_code = open(args.js, 'r')
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params = urllib.parse.urlencode([
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('js_code', js_code.read()),
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('compilation_level', args.compilation_level),
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('output_format', 'text'),
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('output_info', 'compiled_code'),
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])
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js_code.close()
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headers = { "Content-type": "application/x-www-form-urlencoded" }
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conn = http.client.HTTPConnection('closure-compiler.appspot.com')
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conn.request('POST', '/compile', params, headers)
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response = conn.getresponse()
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data = response.read()
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output_code = open(args.js_output_file, 'w')
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output_code.write(data.decode("utf-8"))
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output_code.close()
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conn.close()
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if __name__ == "__main__":
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main()

‎entrypoint.sh‎

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#!/bin/sh
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set -e
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if [ "${1#-}" != "$1" ]; then
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set -- /bin/compiler.py "$@"
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fi
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exec "$@"

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